2026 Second Half KOSDAQ Quant Investment Strategy | Chesley Investment Advisory Executive Director Park Se-ik & Department Head Jo Jae-wan [Yonhap Infomax Academy]

Summary

This session is an introductory quant investing lecture focused on KOSDAQ seasonality and a 2026 second-half strategy. Jo Jae-wan presents Korean equity odd-year/even-year and monthly seasonal patterns showing KOSDAQ has historically been weak from May through October and strong from November. Park Se-ik then argues that after a roughly 50% drawdown and a steep August 2026 year-to-date decline, KOSDAQ has reached deep-value territory, and he suggests installment buying of the TIGER KOSDAQ 150 ETF over August through October before the November seasonal recovery.

• The lecture explains quant investing as rule-based execution to remove emotional buy/sell decisions.
• Korean equities show an odd-year/even-year pattern, with odd years historically strong and even years weak, especially for KOSDAQ.
• KOSDAQ monthly seasonality shows consistent weakness from May through October and strength from November onward.
• As of August 7, 2026, KOSDAQ is down 13.7% year-to-date and roughly 50% from its high, pushing it into deep-value territory.
• Park Se-ik recommends accumulating the TIGER KOSDAQ 150 ETF in installments during August, September, and October.
• The March 2026 KOSDAQ active ETF launch is criticized as poorly timed relative to the seasonal quant framework.